PRESS RELEASE
GE Digital Energy Delivers Industry’s Most Advanced, Cost-Effective Protection Solution for Line and Cable Applications
For release: September 25, 2008
MARKHAM, Ontario, Canada -- GE Digital Energy announces the Multilin L30 Line Differential System which delivers cost-effective current differential protection for high-speed, sub-transmission and distribution lines and cables. The newest member of GE Digital Energy’s industry-leading Universal Relay (UR) platform of protection and control devices, the L30 offers utilities sophisticated protection, comprehensive communications, embedded IEC 61850 process bus support, and advanced metering and synchrophasor monitoring.
Based on the highly successful Multilin L90 Line Current Differential System, the L30 is equipped with the most advanced sensitive and segregated line differential protection and a full suite of integrated back-up protection, making it a cost-effective option, particularly for medium voltage underground cables. The L30 is IEC 61850 compliant and offers comprehensive, enhanced communications capabilities including support for the new Multilin HardFiber™ System Process Bus Solution, whichprovides bi-directional IEC 61850 fiber optic communications, using GOOSE messaging,directly to the primary switchyard.With programmable logicto build custom control applications, the L30 deliversseamless communications and interoperability, eliminating the need for point-to-point wiring and auxiliary devices.
Adhering to the latest in security compliance, the L30 includes added features for the highest levels of device and system security. It creates a robust network security while enabling critical infrastructure protection with Dual Permission Access Control and User Command Logging.
The L30 is the only sub-transmission differential relay supporting synchrophasors and conforms to IEEE C37.118 standards for synchrophasor streaming over Ethernet. It includes high-accuracy metering and recording for all AC signals, detailed disturbance and event recording, and advanced device health diagnostics. With these features, the L30 significantly reduces the time needed for postmortem analysis of power system events and the creation of regulatory reports.
For more information on the Multilin L30 Line Differential System, visit
About the Multilin Universal Relay (UR) Family
The UR is a family of leading edge protection and control products built on a common modular platform. All UR products feature high performance protection, expandable I/O options, integrated monitoring and metering, high-speed communications, and extensive programming and configuration capabilities. The UR forms the basis of simplified power management for the protection of critical assets, either as a stand-alone device or within an overall power automation system. For more information, visit
About GE Digital Energy:
GE Digital Energy is a global leader in protection and control, communications, power sensing and power quality solutions. Its products and services increase the reliability of electrical power networks and critical equipment for utility, industrial and large commercial customers. From protecting and optimizing assets such as generators, transmission lines and motors, to ensuring secure wireless data transmission and providing uninterruptible power, GE Digital Energy delivers industry-leading technologies to solve the unique challenges of each customer. For more information, visit
About GE Enterprise Solutions:
GE Enterprise Solutions elevates customers' productivity and profitability with integrated solutions using sensors and non-destructive testing; security and life safety technologies; power system protection and control; and plant automation and embedded computing systems. Enterprise Solutions'high-tech, high-growth businesses includeSensing & Inspection Technologies, Security,Digital Energy, and GE Fanuc Intelligent Platforms. The business has 17,000 problem-solving employees in more than 60 countries around the world.
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Media Contact
Donna Mirandola
Communications Manager
GE Digital Energy
1-905-201-2407